Pediatric renal abscesses: AÂ contemporary series

Pediatric renal abscesses were most commonly small and secondary to an E. coli UTI. Most small (≤3 cm) renal abscesses resolved with conservative management. Percutaneous drainage should be considered for lesions >3 cm and in patients who remain persistently febrile, despite culture-specific antibiotics, are immunocompromised or critically ill.172Figure. Representative image of a pediatric renal abscess on computed tomography with intravenous contrast.